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For those interested, I thought I'd share my work that saved me $10 - $30. Since I never used the USB cable that came with my 8125, I cut the cable and connected it to a cigarrette lighter plug. There are 4 wires in the USB cable (yellow,,black,green,white); 2 wires in the plug(red,black). Connect red to yellow, and black to black. The white and green wires can be twisted together to be out of the way, they are NOT connected to any thing. Voila! a homemade car charger that really worksP.S. Check out this website: Funformobile.com. Today animations, ringtones, all sorts of cool stuff for your 8125.Cingular 8125ROM 2.25.11.1
12volts straight to the dome! Better stop up and batteries!
Ya know, the real 8125 car charger converts the car batt 12VDC to 5VDC and regulates the amps to 1. Just thought Id throw that out there!
Take a look at this then!!! I had a camera that i droped and its in little bits, so i just cut the holder abit and now i have a phone holder for when i am flashing roms or doing other things on it!
calouro said:
Ya know, the real 8125 car charger converts the car batt 12VDC to 5VDC and regulates the amps to 1. Just thought Id throw that out there!
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That's funny, I saw the "real" car chargers, and not 1 has a "built-in" converter or step down transformer from 12V to 5V. All it has is a cigarrette lighter plug and the charging cable like the one I made. Is the converter in the cigarrette lighter plug? I use my homemade charger every day in my truck, and have had no problems. My phone would had fried when I first tested it. If anyone else decides to make their own charger, you're doing this at your own risk. I am not responsible for your stupidity or lack of mechanical skills. I'm just sharing my work.
hotdog53 said:
... I am not responsible for your stupidity or lack of mechanical skills. I'm just sharing my work.
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So, what you are saying is that it was stupid of you to create your own?
Yes, the original car charger has a down converter within the plug - sooner or later your device will either blow up or your battery will break.
I do not recommend this to anyone! You better keep your original USB data cable and buy you a real car charger for $5.00 (and up).
Going hotdog53's way is saving money on the wrong end ... your WIZ is a bit too expensive for that, isn't it?
Junner2003 said:
So, what you are saying is that it was stupid of you to create your own?
Yes, the original car charger has a down converter within the plug - sooner or later your device will either blow up or your battery will break.
I do not recommend this to anyone! You better keep your original USB data cable and buy you a real car charger for $5.00 (and up).
Going hotdog53's way is saving money on the wrong end ... your WIZ is a bit too expensive for that, isn't it?
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Come on now, how in the heck can a converter or step down transformer be made inside a plastic cigarrette lighter plug??? Visit Cingular's accessories website for car chargers for 8125 or8525, and click on the view details located at the bottom of the car charger pic. The home charger with the big black plug has a converter to step down 120V. I used the pistol type cigarrette lighter plug. Where can I get 1 for 5 bucks? I'll buy it for a spare.
Almost every vehicles electical system runs on a +12V DV Current. A standard cigarete lighter is 12volts. and does not have a transformer. By tying in the usb cable directly to the cars 12V system you are now stuffing massive amounts of electricity into your phone at an unregulated rate. It is highly likely you will burn out sensitive resisters and capaciters in the phone because they are very small and not designed to handle the current. Also charging a battery too fast is bad for it regardless of NmHi, Nicad or Lithiom. If you charge rate "amps" is too high you'll permanently damage battery cells "cook" them. One thing also is that it could actualy draw current from your phone. What I mean is that your phone may plug into the cable and show that it's charging but it's actually draining the battery.
I'd spend the $14 at walmart for the motorola "mini usb style" charger...
Option "b" is to buy a cheap power inverter that converts the current from dc to ac and you will be able to plug in your standard wall charger.
Thanks for this very informative reply. I've used my homemade charger for several days now, and my battery has no problem charging from the home charger. True, the cigarrette lighter is 12V, but the vehicle's voltage regulator controls the amount of voltage that is put into these 12V receptacles. For safety, a fuse would blow before anything drastic happened.
Yeah, but if my truck's Not running, what does the voltage regulator do? NOTHING! Hey everybody who replied and read this thread, I stand corrected and apologize for my sarcasm and knowing all! The protection IS in the plug, and fortunately the pistol plug I used was from another phone car charger. I agree with all the rest...DO NOT MAKE YOUR OWN!SORRY EVERYONE!!Cingular 8125ROM 2.25.11.1
Do they make a stand alone 8525 (hermes) battery charger? Perhaps I could order a spare battery and wall charger for it?
Issue I have is that with my home wall charger, the connector at the bottom appears loose. I have to hold it a certain way for the orange charge light to work. If I touch it while plugged in, the charging light blinks to orange to off and back randomly (like a very loose connection).
At work my USB cable doesn't do this, but I took a pair of plyers and squeezed the cable connector so that there would be a tighter fit. I've seen other people's StarTrek(3125) completely break off the port inside the phone, so in case that would happen to me I was hoping for a backup solution for at least charging the battery. I can still sync or transfer files with WiFi, but yeah it would suck if the USB connector inside the Hermes broke off like it does on the StarTrek flip smartphones.
While I have not tried one there are some available. Here is a link to a place that advertises one: http://www.cellphoneshop.net/debachwipoco3.html
I didn't buy the HTC extended battery but one from amazon sold by Karen Deals. Link is below
http://www.amazon.com/gp/product/B0..._m=ATVPDKIKX0DER&pf_rd_r=0NVM3EA1B2VE9HN3AKMA
Battery
Model No: cs-ht8585xl
Part No: 35h000128-00m, ba s400
Rating: 3.7v 2400mah
Lithium Ion
Induction Unit
Palm Pixi charging back with Palm touchstone charging dock
Operating System
Shubcraft 1.4d
Video:
Images are attached below!
Induction charging has the same charging speed as plugging it into a wall outlet. Very fast!
Sidenote:
I tried using a multimeter with the 3 contacts located under the battery and could not get it to register anything (with and without the charger plugged in). I then tried shooting 5v through it using 6 different combination (2 plugs for 3 contacts) and still couldn't get anything. If anyone knows a way to use these 3 contacts for charging please leave feedback. Also if anyone can find a minature microusb male connection that'd be great.
Well done, it's a really nice mod!
The 2400 mAh is a bit too bulky for me, though the extended uptime must be awesome. I'd even consider something similar, were it not that you're using the microusb to charge. If only you could connect it straight to the battery, would be so much more convenient. It'd still work in for instance car kits and attached to a pc.
Never the less, well done.
Looks great, i would try this myself but i cant stand the bulk of extended batteries and the stock metal back would almost defiantly interfere with the current. Where did you get the decal from?
Angelusz said:
Well done, it's a really nice mod!
The 2400 mAh is a bit too bulky for me, though the extended uptime must be awesome. I'd even consider something similar, were it not that you're using the microusb to charge. If only you could connect it straight to the battery, would be so much more convenient. It'd still work in for instance car kits and attached to a pc.
Never the less, well done.
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You can't plug in directly to the battery since the battery doesn't have a balancer board on it and it would explode if it were to be overcharged without one.
JJbdoggg said:
Looks great, i would try this myself but i cant stand the bulk of extended batteries and the stock metal back would almost defiantly interfere with the current. Where did you get the decal from?
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I got the decal in the automotive section of Walmart. It came with 2 big/4small stickers for 7usd
UPDATE: Made the microusb head smaller! Letting liquid electrical tape dry then I'll post pics.
this is a really nice mod. what about the possiblly of going via the nav panel connectors instead of micro usb. this would as far as i know leave the usb port free and also not have the disadvantage of having a usb connector attached which can be easily damged.
Personalyu i wouldnt do this mod as i use my phone to tether a hell of a lot so it seems pointless to me, but being able to just sit your phone down and have it charge is awesome.
Great work!!!!
veda_sticks said:
this is a really nice mod. what about the possiblly of going via the nav panel connectors instead of micro usb. this would as far as i know leave the usb port free and also not have the disadvantage of having a usb connector attached which can be easily damged.
Personalyu i wouldnt do this mod as i use my phone to tether a hell of a lot so it seems pointless to me, but being able to just sit your phone down and have it charge is awesome.
Great work!!!!
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I tired the navpanel connections with no success. If anyone has a multimeter please try to do it to theirs (with charger plugged in).
that is really odd....only think i can think of is manye theres something that needs to happen with the middle pin.
nice work i think that decal are very cute indeed!
PPL this is knowed from a long time! This pins are used for example with Car Kit like CU s400: http://www.slashgear.com/htc-hd2-cu-s400-car-kit-gets-priced-detailed-coming-december-1360143/
This car kit is in two versions: like this on 1st photo - use other battery cover which use this "mysterious" pins to run NaviPanel and charging battery and 2nd version with charging via microUSB port.
I hope this helps a bit.
veda_sticks said:
that is really odd....only think i can think of is manye theres something that needs to happen with the middle pin.
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This "odd" middle pin you can find in every phone battery too. If you depart any battery you can find there a little electronic circuit.
I think, that this pin is used to metering battery charge, but i can be wrong - im not advanced in electornics.
I'm well aware of the existance of these products but cannot figure out what the three contacts below the batteries are.
Maybe some users having one. In that case he/she can make photos of all connectors or better - check it with multimeter which connector is +, - and this middle one.
Maybe some service manuals can tell something more abt this. I searched for it and i did'nt find nothing useful.
FRANQ_23_PL said:
Maybe some users having one. In that case he/she can make photos of all connectors or better - check it with multimeter which connector is +, - and this middle one.
Maybe some service manuals can tell something more abt this. I searched for it and i did'nt find nothing useful.
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I also did a search on google and xda but with no luck. I don't think it inputs 5v into the machine since I did shoot 5v into the 3 connectors using different combination.
Hi all,
The contact closest to the center of the phone (looking along the longest axis of the phone) is the +5V, the one furthest from the +5V is the ground, and there's a small voltage on the center contact, positive to ground. These +5V voltage shows up (on my phone) only when the mini-USB charger is plugged in.
I've got the +5V terminal of the Pre plate attached to the +5V contact on the phone, and the other one attached to the GND contact. Inductive charging works at 341ma (as measure by the hardware and read by BattClock) at maximum, which is probably not coincidentally also the limit set on USB charging, at least from my laptop.
I tried hooking the Touchstone up to a Apple ~1" cubed charger, didn't get any charge. I haven't read the USB power specifications, but according to the people at the Palm forums you have to have a USB spec power-capable charger to initialize the Touchstone, and the USB ICs signal this by connecting the two data lines. This can be approximated by clipping a USB cable and twisting the data lines together on the Touchstone side of the cable. This allowed the Apple charger to power the Touchstone.
The HTC stock charger works fine, as does an 800ma Verizon charger I had laying around. I tried hooking the Touchstone up to both a [email protected] switching charger and a 5V 8A supply, the Touchstone still charged at 341ma. I'm guessing this is software, firmware or hardware limited, just like the computer USB connection. I would speculate that if you shorted the middle pin to the ground pin, it might remove this restriction. Or fry your phone, I didn't try it.
There's a guy on the Pre forums who got the Touchstone to consume about 1.02A (http://forums.precentral.net/palm-p...b-adapters-touchstone-dock-2.html#post2020491) so the thing can, apparently transfer some power. I don't know how long it would last at those wattages, but I'm going to read a bit on the USB power spec and see if the 341ma limit can be lifted.
It's kind of nice to use the internal connector, because it leaves the microUSB port open. If anyone has any questions feel free to ask. With the relevant portion of the Pre cover stuck to the back of my phone, there are no wires out of the chassis and the added part doesn't add any considerable bulk to the phone. It protrudes less than the camera.
Anyways, hope this isn't a thread-jack or too long, but I figured it might help anyone that's going to take the time to do this.
Thanks to the community here.
Did you dremel and hotglue the plastic case to the metal case? Interweb highfive from me to you!
Can you post pictures of the inside wiring please?
I did. I basically cut out a square from the HD2 back large enough to hold the coiled length of wire that is needed to allow the back to be removed and articulated. Then I used Super Glue to fix the section of the Pre back containing the inductive coil and circuitry to the HD2 back.
If you're trying to maintain your warranty I might suggest DigiKey part number 478-4687-1-ND, it's from the AVX "MOBO Spring Contact Interconnect Solutions" catalog under battery connectors (I can send you a .pdf copy of the catalog, it's too big to upload to forum). This is a 3mm pitch connector that should mate well with the internal connector - but - I don't have calipers so I would measure before ordering. I just soldered the wires to my HD2.
I'll post some pictures soonish.
And yeah, high five for sure. Thanks for pioneering this. My last phone was retired when the power connector became flaky, so it's nice not to have to worry about the contact wearing out.
Ur mod is on a dutch popular website!
http://tweakers.net/nieuws/69360/mod-maakt-draadloos-laden-mogelijk-op-htc-hd2.html
Right angle micro-usb
I'm looking to do the same thing with my Vibrant and have been searching for a similar connector. I just did a quick google search and found these angled connectors:
http://www.usbfirewire.com/u_microb_cables_angled.html
I tried soldering it your way with no sucess
Soldering pins are as shown
(If viewing vertically with top up)
(leftside of hd2) negative x positive (center of hd2)
bumping an old thread to see if you've taken pictures of the contact points yet.
Sorry it took me so long to reply. Two pictures, the first is the terminal with the wires soldered in, the second shows how I got the cables from the Palm coil/board through the cover. The terminals as you look along the longest axis of the phone with the microUSB plug closest to you are GND, something, and +5v.
So from left to right: 1 GND / 2 ? / 3 +5v.
Does the Desire Z have any contacts for charging & data. Looking at the pictures it seems that the usb connection is on the side which is a bit awkward in a car holder arrangement.
It would be great to drop it into a cradle (car or desk) without having to fiddle about plugging bits in, but it seems that decent manufacturer's accessories are a thing of the past..?
With the navigation a prominent feature, it really would make sense to have a proper accessory to mount the phone correctly.
I really would like to know this as well. I also want to know if you can route audio through micro-usb port. It works out really good in my G1 right now, I only have to plug in 1 cord for both audio and charging. I would hate to have to plug in 2 cords, micro-usb for charging and 3.5mm for audio, especially since they are on different sides of the phone.
I have the nexus one stand and its amazing. I hope there is some sort of dock. I hate trying to plug it in.
This is my concern - I don't think the regular Desire has any docking contacts (not certain on this though)
The TMo G2 has no dock contacts.
Use these car docks
I've been using the pro clip car docking systems for over 5 years now ... changed 2 cars and on my 3rd phone ...
good solid build, easy install and especially uninstall without damage to vehicle, etc.
I'm buying hte HTC desire Z as soon as it's available from bell in Canada (will unlock it and use it on Fido) but I already ordered the proclip mount for it (the one with car cigarette lighter plug charger) - it supports the phone both vertically and horizontally with or without the keyboard exposed (slide in from the side into the usb plug for charging). see proclipusa dot com and look for the desire z
Ok, I just got my holder
luciantm said:
I've been using the pro clip car docking systems for over 5 years now ... changed 2 cars and on my 3rd phone ...
good solid build, easy install and especially uninstall without damage to vehicle, etc.
I'm buying hte HTC desire Z as soon as it's available from bell in Canada (will unlock it and use it on Fido) but I already ordered the proclip mount for it (the one with car cigarette lighter plug charger) - it supports the phone both vertically and horizontally with or without the keyboard exposed (slide in from the side into the usb plug for charging). see proclipusa dot com and look for the desire z
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took a bit to get used to the side slide-in (due to usb on the side instead of on the bottom) but it really works great - got the one with cigarette lighter charger - this way I can use navigation without draining the battery
luciantm said:
took a bit to get used to the side slide-in (due to usb on the side instead of on the bottom) but it really works great - got the one with cigarette lighter charger - this way I can use navigation without draining the battery
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It makes sense having the usb on the side of the phone on slider designs. With a bottom mounted usb connector the usb cable gets in the way of your hand when charging the phone when you're typing on the keyboard.
brodit.se are making a car dock to the DZ . And I hope that's with a charger .
http://forum.xda-developers.com/showthread.php?t=799621
Correction bordit.se have made 3 car docks 2 with USB Charger.
http://twitpic.com/34p7xl http://twitpic.com/34p7zi http://twitpic.com/34p7vv
I have a Mag charger dongle for my Z3 C , as I have millions of USB cables.
I was just at my desk in work , when I saw some thin black smoke .. I looked down and saw the smoke was coming from the dongle .
The magnet had connected to some metal on the desk and was trying to charge it !!
The dongle was very hot , the USB cable was very hot and so was the USB hub!!
Now looking at the dongle , its melted the ends , so wont attach onto my phone . I did not think that would happen , as I assumed you would need a electrical signal or something to start the process off .
Need to buy a new dongle now )
dgattenb said:
I have a Mag charger dongle for my Z3 C , as I have millions of USB cables.
I was just at my desk in work , when I saw some thin black smoke .. I looked down and saw the smoke was coming from the dongle .
The magnet had connected to some metal on the desk and was trying to charge it !!
The dongle was very hot , the USB cable was very hot and so was the USB hub!!
Now looking at the dongle , its melted the ends , so wont attach onto my phone . I did not think that would happen , as I assumed you would need a electrical signal or something to start the process off .
Need to buy a new dongle now )
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That sucks! I leave my magnector charger attached to my metal lamp and never had problems.
The official mag charger has its contact pins recessed inside small cylindrical plastic housing which prevents this unintended contact.
Was the dongle perhaps more exposed that enabled it to short?
Maybe something to look for in your next purchase.
I use this.
http://www.amazon.com/Original-Pack...rds=deff&pebp=1421989471483&peasin=B00KNLFS9E
The charging pins are recessed as well.
I have now brought this http://www.amazon.co.uk/dp/B00RYB4OKA/ref=pe_385721_37038051_TE_3p_dp_1 NoveltyThunder® - Charging Adapter for Micro USB Cable
Looking at the pins of my old one ( one has fallen off , as has the female usb converter at the bottom ) the pin was raised above the plastic mould , the new one has its pins recessed and it is a much stronger connection.